CN101955141B - Push type high-efficiency and energy-saving forklift lifting structure - Google Patents

Push type high-efficiency and energy-saving forklift lifting structure Download PDF

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Publication number
CN101955141B
CN101955141B CN201010275750.1A CN201010275750A CN101955141B CN 101955141 B CN101955141 B CN 101955141B CN 201010275750 A CN201010275750 A CN 201010275750A CN 101955141 B CN101955141 B CN 101955141B
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frame
electric cylinder
hand
guide frame
forklift
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CN101955141A (en
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曾卫东
潘亚敏
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Shanxi Guoli Information Technology Co Ltd
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Abstract

The invention relates to a storage battery forklift, in particular to a push type high-efficiency and energy-saving forklift lifting structure, which at least comprises a push forklift body, a fork head frame, fork heads and a guide frame, wherein the fork head frame, the fork head and the guide frame are connected with the front end of the push forklift body; the fork head is connected with the guide frame in a sliding way through a guide groove, left and right two horizontal fork heads are connected with the fork frame through a forklift door frame; the guide frame and the chassis of the push forklift body are fixed; and the fork head frame slides up and down in the guide groove along the guide frame under the drive of a transmission belt/chain belt. The storage battery forklift is characterized in that: the lower end of a transverse lifting rod is vertically fixed and connected with the push rod of an electric cylinder; and the electric cylinder is fixed at eudipleural positions in the center of the guide frame. In the storage battery forklift, an electric ball screw is used to replace a fork driving cylinder, a front arm rotation cylinder, a steering cylinder, a fork transverse shit cylinder and other hydraulic cylinders of the storage battery forklift.

Description

A kind of hand propelled efficient energy-saving forklift lift system
Technical field
The present invention relates to a kind of batter fork lift truck, particularly relate to a kind of hand propelled efficient energy-saving forklift lift system.
Background technology
Current hand push type forklift lift system is pitched by car and is driven hydraulic oil cylinder driving.When fork truck works, electrical motor drives Hydraulic Pump to rotate, then is connected to each oil cylinder by hydraulic tubing, and with manual and motorized valve oil circuit control.But there is following problem in existing hydraulic efficiency pressure system:
1, hydraulic tubing connects complicated and easily produces leakage of oil and system is installed inconvenient.
2, hydraulic efficiency is low, so batter fork lift truck generally all adopts independent motor to drive Hydraulic Pump.Because the principle of work of Hydraulic Pump and manufacture craft make the work efficiency of system lower, cause the waste of the energy.
3, hydraulic efficiency pressure system brings that the efficiency of fork truck entirety declines, reliability reduces, run that noise is large, energy consumption increases, and manufacturing cost is high, and system complex installation difficulty is large.
Summary of the invention
The object of the invention is to provide a kind of hand propelled efficient energy-saving forklift lift system, to solve the technical matters that installation is inconvenient, driving efficiency is low, service life is low, operation noise is large, reliability is low that existing batter fork lift truck brings because adopting fluid power system.
The object of the present invention is achieved like this, a kind of hand propelled efficient energy-saving forklift lift system, which comprises at least hand-pushing forklift body, be connected to the jaw frame of hand-pushing forklift body front end, jaw and guide frame, jaw frame and guide frame are by guide groove sliding block joint, two jaws on level one the first from left right side are by forklift door frame and jaw frame sliding block joint, guide frame and hand-pushing forklift body chassis are fixed, it is dynamic that jaw frame slides up and down title along guide frame at guide groove under belts/chain drives, article two, belts/chain one end and jaw frame are fixed, the other end is fixed on hand-pushing forklift body, article two, be flexibly connected by horizontal lifting bar transition in the middle of belts/chain, it is characterized in that: horizontal lifting bar lower end is vertically fixedly connected with the push rod of electric cylinder, electric cylinder is fixed on symmetrical position, guide frame center.
Described electric cylinder comprises electrical motor, gear pair, gear case, transmission shaft, drive bearing and push rod, electrical motor is by change-speed box or directly connect gear pair, gear pair is fixed in gear case, gear pair is connection for transmission axle simultaneously, transmission shaft is connected with drive bearing bearing, and gear pair makes transmission shaft and motor reel form parallel construction.Electric cylinder is connected with the operating mechanism of hand-pushing forklift body, controls push rod start, stop, stretching out, retract by operating mechanism.
Electric cylinder in described guide frame is two groups, vertically establishes between the framework of guide frame left and right, and the left electric cylinder of two groups of electric cylinders and the equilibrium of right electric cylinder are arranged, left electric cylinder and the left push rod of right electric cylinder, right push rod and horizontal lifting bar is vertical is connected.
Position sensor in described electric cylinder; Position transduser is magnetic induction sensor or opto-electronic pickup, and the output signal of position transduser sends into operating mechanism; Operating mechanism drives actuating unit to guarantee the push rod telescopic location of electric cylinder, reaches the raised position controlling jaw.
Described push rod is electric ball screw, or the connector of electric ball screw, is used for set position transduser along push rod rectilinear movement direction position sensor.
The advantage that the present invention has is:
1, hand-pushing forklift of the present invention adopts multiple motor drive respectively and control due to whole drive system, makes system effectiveness high, and system consumed energy hardly when not walking or not promoting.
2, the position of the electric ball screw detected in real time is sent to fork truck control system by the position feedback mechanism of each electric ball screw cylinder of hand-pushing forklift of the present invention.The height forking object once, the anglec of rotation of rear steering wheel, travel distance, heap are unloaded the height of object by fork truck control system, position, track route record store.By after the arranging of operating personal, the height that full electric forklift can unload object according to the automatically different height forking object and heap is undertaken by former route that sequencing is unmanned to work.
3, electric ball screw cylinder of the present invention have forced stroke and work speed controllable precise, reliability high, leakage of oil, system advantage easy for installation can not be produced.Adopt ball screw assembly, or lead screw pair to carry out motion conversion, have that conversion efficiency is high, the advantage of long service life.
4, electric ball screw cylinder operation noise of the present invention is low, environmentally safe.Low cost of manufacture.
5, electric ball screw cylinder of the present invention has the advantage that the conformability of manufacture is good, be convenient to repair and replacement.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is electric cylinder structural representation;
Fig. 4 is the embodiment of the present invention 2 structural representation.
In figure: 1, jaw frame; 2, jaw; 3, forklift door frame; 4, belts/chain; 5, lifting bar; 6, guide frame; 7, push rod; 8, electric cylinder seat; 9, electric cylinder; 10, fork truck movable pulley; 11, Left Drive band/chain; 12, right belts/chain; 13, left electric cylinder; 14, right electric cylinder; 15, left push rod; 16, right push rod; 17, hand-pushing forklift body; 18, electric cylinder controller; 19, guide groove; 20, hand push handle; 21, gear pair; 22, change-speed box; 23, electrical motor; 24, gear case; 25, transmission shaft; 26, drive bearing.
Detailed description of the invention
Embodiment 1
As Fig. 1, shown in Fig. 2, a kind of hand propelled efficient energy-saving forklift lift system, which comprises at least hand-pushing forklift body 17, be connected to the jaw frame 1 of hand-pushing forklift body 17 front end, jaw 2 and guide frame 6, jaw frame 1 and guide frame 6 are by guide groove 19 sliding block joint, two jaws 2 on level one the first from left right side are by forklift door frame 3 and jaw frame 1 sliding block joint, guide frame 6 and hand-pushing forklift body 17 chassis are fixed, it is dynamic that jaw frame 1 slides up and down title along guide frame 6 at guide groove 19 under belts/chain 4 drives, article two, belts/chain 4 one end and jaw frame 1 are fixed, the other end is fixed on hand-pushing forklift body 17, article two, be flexibly connected by horizontal lifting bar 5 transition in the middle of belts/chain 4, horizontal lifting bar 5 lower end is vertically fixedly connected with the push rod 7 of electric cylinder 9, electric cylinder 9 is fixed on symmetrical position, guide frame 6 center.
As shown in Figure 3, electric cylinder 9 comprises electrical motor 23, gear pair 21, gear case 24, transmission shaft 25, drive bearing 26 and push rod 7, electrical motor 23 output shaft connects gear pair 21, or connect gear pair 21 by change-speed box 22, gear pair 21 is fixed in gear case 24, gear pair 21 is connection for transmission axle 25 simultaneously, and transmission shaft 25 is connected with drive bearing 26 bearing, and gear pair 21 makes transmission shaft 25 and electrical motor 23 axle form parallel construction.Electric cylinder 9 is electrically connected with electric cylinder controller 18, is located on electric cylinder seat 8, controls push rod 7 start, stop, stretching out, retract by electric cylinder controller 18.
Embodiment 2
As shown in Figure 4, in order to strengthen propulsive effort and the balance of fork truck, electric cylinder 9 in guide frame 6 is two groups, vertically establish between guide frame about 6 framework, the left electric cylinder 13 of two groups of electric cylinders and right electric cylinder 14 equilibrium are arranged, Left Drive band/chain 11 and right belts/chain 12 one end and jaw frame 1 are fixed, the other end is fixed on fork truck body 17, fork truck body has fork truck movable pulley 10 17 times, article two, be flexibly connected by horizontal lifting bar 5 transition in the middle of belts/chain 4, the left push rod 15 of left electric cylinder 13 and right electric cylinder 14, right push rod 16 is connected with horizontal lifting bar 5 is vertical.
Hand-pushing forklift body 17 moves hand push handle 20 M/C connected by rear end, and in order to counterweight, there is bracing frame hand-pushing forklift body 17 rear end, and fork truck entirety tilts backwards and supported by bracing frame.
Two groups of electric cylinders all comprise electrical motor 23, gear pair 21, gear case 24, transmission shaft 25, drive bearing 26 and push rod 7, left electric cylinder 13 is connected with the electric cylinder controller 18 of hand-pushing forklift body 17 with the electrical motor of right electric cylinder 14, is controlled left push rod 15, right push rod 16 move by electric cylinder controller 18, move down, starts, is stopped.
Position sensor in electric cylinder; Position transduser is magnetic induction sensor or opto-electronic pickup, and the output signal of position transduser sends into operating mechanism; Operating mechanism drives actuating unit to guarantee the push rod telescopic location of electric cylinder, reaches the raised position controlling jaw 2.
The push rod 7 of electric cylinder can with electric ball screw integral structure, or the connector of electric ball screw, moves linearly direction position sensor for set position transduser along push rod 7.

Claims (1)

1. a hand push type forklift lift system, which comprises at least hand-pushing forklift body (17), be connected to the jaw frame (1) of hand-pushing forklift body (17) front end, jaw (2) and guide frame (6), jaw frame (1) and guide frame (6) are by guide groove (19) sliding block joint, two jaws (2) on level one the first from left right side are by forklift door frame (3) and jaw frame (1) sliding block joint, guide frame (6) and hand-pushing forklift body (17) chassis are fixed, jaw frame (1) slides up and down along guide frame (6) at guide groove (19) under belts/chain (4) drives, article two, belts/chain (4) one end and jaw frame (1) are fixed, the other end is fixed on hand-pushing forklift body (17), article two, be flexibly connected by horizontal lifting bar (5) transition in the middle of belts/chain (4), it is characterized in that: horizontal lifting bar (5) lower end is vertically fixedly connected with the push rod (7) of electric cylinder (9), electric cylinder (9) is fixed on symmetrical position, guide frame (6) center, described electric cylinder (9) comprises electrical motor (23), gear pair (21), gear case (24), transmission shaft (25), drive bearing (26) and push rod (7), electrical motor (23) connects gear pair (21) by change-speed box, gear pair (21) is fixed in gear case (24), gear pair (21) is connection for transmission axle (25) simultaneously, transmission shaft (25) is connected with drive bearing (26) bearing, gear pair (21) makes transmission shaft (25) and electrical motor (23) axle form parallel construction, electrical motor (23) is connected with the electric cylinder controller (18) of hand-pushing forklift body (17), control electrical motor (23) by electric cylinder controller (18) to start, stop, on move, move down, electric cylinder (9) in described guide frame (6) is two groups, vertically establish between the framework of guide frame (6) left and right, the left electric cylinder (13) of two groups of electric cylinders and right electric cylinder (14) equilibrium are arranged, left electric cylinder (13) and the left push rod (15) of right electric cylinder (14), right push rod (16) and horizontal lifting bar (5) is vertical is connected, position sensor in described electric cylinder, position transduser is magnetic induction sensor or opto-electronic pickup, and the output signal of position transduser sends into operating mechanism, operating mechanism drives actuating unit to guarantee the push rod telescopic location of electric cylinder, reaches the raised position controlling jaw (2), described push rod (7) is electric ball screw, the hand push handle M/C that hand-pushing forklift body is connected by rear end, and in order to counterweight, there is bracing frame the rear end of hand-pushing forklift body, and fork truck entirety tilts backwards and supported by bracing frame.
CN201010275750.1A 2010-09-08 2010-09-08 Push type high-efficiency and energy-saving forklift lifting structure Active CN101955141B (en)

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Application Number Priority Date Filing Date Title
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CN101955141B true CN101955141B (en) 2015-01-14

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102807176A (en) * 2011-06-02 2012-12-05 蔡勇夫 Portable elevation type forklift
CN102730602A (en) * 2012-06-29 2012-10-17 安徽德摩新能源叉车股份有限公司 Lighterage forklift structure
CN103879927A (en) * 2014-03-28 2014-06-25 高佳太阳能股份有限公司 Silicon wafer transferring forklift limiting mechanism
CN106044622A (en) * 2016-06-30 2016-10-26 南京卓基工业设备有限公司 Lifting device
JP7215948B2 (en) * 2019-03-28 2023-01-31 三菱重工業株式会社 forklift

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022450A1 (en) * 1990-05-22 1991-11-28 Linde Ag FORKLIFT
JP2001171990A (en) * 1999-12-22 2001-06-26 Nippon Yusoki Co Ltd Forklift
CN100419304C (en) * 2006-11-02 2008-09-17 上海交通大学 Two stage speed changing directly driving mechanism
CN201264889Y (en) * 2008-09-05 2009-07-01 晃益齿轮工业股份有限公司 Ball bearing lead electric cylinder strengthening structure
CN101717060A (en) * 2009-12-20 2010-06-02 曾卫东 Fork lifting device and electric fork truck
CN101811652B (en) * 2010-04-01 2012-01-25 张波 Electric forklift

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